LM339PWRG4

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LM339PWRG4 is a family of precision comparator devices. It is a type of semiconductor integrated circuit which is used for comparison of voltage levels. It is a distinct form of linear comparator. The LM339PWRG4 family of devices is designed specifically for operation in industrial and commercial applications. It is manufactured using low-power CMOS technology.

Application Field

LM339PWRG4 comparator devices are designed to be used in applications related to monitoring and assignment of logic levels. This family of devices is useful in eliminating over-current, over-voltage, over-temperature, and EMC noise problems in systems used in modern industrial and commercial applications. Common applications include automotive, aviation, space, and communication systems.

The LM339PWRG4 family of devices can also be used in power management, load detection, battery charge/discharge monitoring, and voltage clamping applications. It can be employed to improve reliability in Industrial and consumer systems. LM339PWRG4 devices are preferred due to their low power consumption and wide operating voltage range.

Working Principle

LM339PWRG4 devices are precision linear comparators that compare two analog voltages (+V1 and –V1) using an internal reference voltage. When the differential voltage exceeds a preset threshold, the output of the LM339PWRG4 will move from low to high state, or from high to low depending on the polarity of the differential voltage. The LM339PWRG4 has two open drain outputs, so both high and low output levels can be externally pulled-up or pulled-down. Both outputs will remain in the desired state until an opposite voltage input is applied, causing the output to toggle.

The LM339PWRG4 provides guaranteed protection against electric over-stress conditions. This is accomplished by its built-in thermal shutdown circuitry and latch protection circuitry. The thermal shutdown limits the die temperature and the latch protection circuit prevents the misapplication of power to the LM339PWRG4 and its associated components.

The LM339PWRG4 device has adjustable hysteresis that can improve noise immunity by preventing multiple outputs switching due to noise. The hysteresis level can be adjusted using a resistor connected to the HYST pin of the device. The voltage at the HYST pin controls the threshold voltage and sets the hysteresis level. This makes the LM339PWRG4 very useful in applications that require low noise or high reliability.

The LM339PWRG4 has also been designed to ensure an optimal balance between speed and accuracy. It is capable of handling input or output transients without any degradation of performance. Additionally, the LM339PWRG4 has a typical propagation delay time of just 9ns, allowing it to perform comparator functions quickly and accurately.

In conclusion, the LM339PWRG4 precision comparator is an ideal solution for industrial and commercial applications that require precision and a low power solution. With its wide operating voltage range and advanced features, the LM339PWRG4 is well-suited for a wide range of applications. Its low power consumption, adjustable hysteresis, and fast response time make it a highly reliable and efficient comparator device.

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